Features – collectd – The system statistics collection daemon. Modularity / Portability collectd's architecture(schematic overview) Everything in collectd is done in plugins.
Well, except parsing the configfile. This means that the main daemon doesn't have any external dependencies and should run on nearly anything that has heard of POSIX. » Building a ESXi / GNS3 Virtual Lab Impulsion. When I learn new things I would prefer to see things in action rather than in a book. So, when I was studying for my CCNA certification last year, I needed to find a way to push some packets around myself without going broke renting or buying network gear. That’s where GNS3, the network simulator, came into play.
GNS3 is a graphical network simulator for Windows, Mac, and Linux that allows you to setup full blown networks on your personal PC. Graphical Network Simulator - GNS3.